00626nam a2200133Ia 4500008004100000040001700041082002300058110002900081245021300110260003800323300001500361440005900376650005700435190327s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta553.93bI39P  aIndia. Geological Survey 0aPhosphoritebpapers presented in the fourth International Field workshop and seminar on Phosphorite International Geological correlation programme- project 156, November 25-27, 1981, Udaipur, Rajasthan, India  aCalcuttabGeological Surveyc1984  avii, 210p.  aGeological survey of India special publication; no. 17  aPhosphate rock; Geochemistry; Phosphatic fertilizers